Milk-sampling device



J. ROBERTS MIM: .SAMPLING DEVICE May 20 Filed Jun@ ggg, ggg

J20 i @13 'la 1 1 @7M/ Mw j;

Patented Mey 2U, 1924.

UNITED STATES JOSEPH ROBERTS, or PHILADELrnIA, PENNSYLVANIA. c,

MILK-SAMPLING nnvicE.

Application inea-June 1s, 1921..` serial Ne. Maisie'.

T @ZZ whom t may concern.

`Be it known that I, yJosnriar ROBERTS, a

lowing 1s afspecification. l

One objectof my inventionl is "toprovid'ei an improved device for sampling milk in a sanitary and expeditious manner and which will be advantageousffor use in creameries or4 other places where'it is necessary to test the qualities of variousv quantities of milk which is received from timeto'time. i

Another object is to so Iconstruct my improved device that it can be easily and conveniently operated and `will be of a strong and durable formation.y

These objects, and other .advantageous ends which will be describedl hereinafter, I attain in the following manner, reference being had to the accompanying drawings in whichi Figure 1 is a fragmentary elevation partly in section showing the device in a position 'occupied during the taking of a sample of milk, i Figure 2 is a view ofthefsame 'general character as that shownin Figure' 3 illustrating the device in' another position'du'ring the taking of a` sample of milk,

Figure 3 is an enlarged fragmentary section showing a portion of my improved device illustrating the clipper when being lifted through the perforated elevator tube; said dipper containing a sample of milk,

Figure l is an enlarged fragmentary sectional view showing said dipper having tilted to discharge the sample of milk,

Figure 5 is a fragmentary section showing the elevating means for the clipper.

Referring to the drawings and particularly to Figures l to 5 inclusive, 10 represents a milk tank or can, such for example as a tank of the type used in creameries to receive and weigh the milk as it is receivedl and I have illustrated this tank as resting upon a scale 11. A'Ihe weighing of the milk, however, has no particular bearing on the construction or operation of the device of my invention.

An elevator tube 12 has its lower portion 13 extending downwardly into the tank 10 and has a plurality of perforations 14. This tube 12c`an be made of a strong pipe and `is ide'tachably secured-to aside 1`5`ofli`the-tank by any suitable means, such'ifor' example as wardly yaboveI the top vof the gtank 101 providingV a superstructure'which\at its top forms a mountingy for a ca/s'e17 in which sfmount ed a shaft 18 upon which is freely rotatable c 'a' flanged elevator wheel 19.` To this elevator Wheel is'vconnected a pulley 2O `having one end ALof aV pull strap 21'secured thereto. Thepull strap extendsl downwardly through the 'casing and maybe provided withjany suitable handle such as shown at 22." The pulley has one end ofa torsion spring`28 secured thereto; saidltorsion spring" having its other end'iiXed' to thejshaft` or case vso that when the pulley is rotated by a downwardA pull on the strap 21,`the spring 23 will 'be wound andplaced under .tension durfing which action the ,elevator wheel 19 will bel rotated in one direction. l The elevator Wheel 19 has one end of a leXi-ble'device or connection, such as a chain'24, sec'ured'there to; the other end of said chain extending downwardly Within thev elevator tubej 12; it being noted, as shown in Figure 2,that the axisV of' the' tube' 12 is'l tangent with the peripheral sur'face of the elevator wheel 19 so that when the elevator Wheel is rotated in the manner above[describedythe chain 24 will be lowered in the tube 12.

Weighted frame or yoke 25 is secured to the chain 24 and is positioned within the tube 12, a's'clearly shownf infFiguresB and a. A dipper 26 is pivoted at 27 between the arms of the yoke preferably in a plane at one side of the longitudinal axis of the dipper. The bottom 28 of the dipper is so Weighted that when the dipper is empty, it will maintain an upright position even in view of the fact that the pivot 27 is at one f a portion which surrounds the tube 12 and is clampedthereto. This chute tapers out- Wardly and has its bottom slanting downwardly away from the tube 12. The tube 12 is interrupted within its length by providing an opening 31 in registry with the wide portion of the interior of the chute 29 so that the interior of the chute communicates with the interior of the tube 12. In operation, assuming the tank to contain milk from which a sample is to be taken, the operator pulls.

strap 21 downward thereby imparting-rotationy to elevator. wheel` 19 and causing the dipper tobe loweredintube 12, as indicated in Figure 1. Since'this tube 12 is perforated the milk within the tank will flow :into the tube 12 throughthe perforations 14 of said part 13 up to the level ofthe milk vin the tank 10 outside of the confines of the tube 12. In other words,the`l dipper 26 will be lowered into the milk within the tube 12. When the strap 21is released the spring 23 will rotate the elevator wheel 19 in an opposite direction and the chain 24 will be wound thereon and the-dipper with its sample of milk will be raised within the tube as shown in Figure 3. As soon as the dipper reaches the opening 31 in the' tube 12, the dipper will swing on its pivot 27 into the position shown in Figure 4 and the milk will be discharged into the chute 29 and will run downward through the pipe sections into a sampling jar, 4not shown. This action may be' repeated as often as milk is added to thecan or the cans relled.

' While I have described my invention as taking a particular form, it will be understood that the variousparts ofmy invention may be changed without departing from the spirit thereof, andhence I do not limit myself to the precise construction set forth, but consider that I am atliberty to make' such changes and alterations asfairlycome within the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. A milk sampling device including an elevator tube; a discharge chute leading therefrom; a dipper movable in the elevator tube and adapted to automatically discharge its contents into the chute; an elevator wheel; va flexible member connecting the wheel and dipper and normally wound on the wheel; means for rotating the wheel to unwind the flexible member and lower the dipper, and means for automatically rewinding the flexible member and holding the wheel in wound position.

2. A milk sampling device including an elevator tube; a discharge chute leading therefrom; a dipper movable kin the elevator tube and adaptedto automatically discharge its contents into the chute; an elevator wheel; a iexible member connecting the wheel and dipper and normally wound on the wheel; means for rotating the wheel to unwind the flexible member and lower the dipper, and a spring normally holding the wheel in wound position.

3. A milk samplingr device including an elevator tube; a discharge chute leading therefrom; a dipper movable in the elevator tube and adapted to automatically discharge its contents kinto the chute; an` elevator wheel; -a flexible member connecting the wheel and dipper and normally wound on the wheel; a pulley secured to the wheel; a spring normally holding the wheel in wound position, and a pull strap for rotating the pulley and wheel against the tension of the spring.

In testimony whereof I have signed my name to thisspecification in the presence of two subscribing witnesses.

. JOSEPH ROBERTS.

Witnesses:

CHAs. E. Po'rTs, ELIZABETH GARBE.` 

